0723 System of Rice Intensification. Group II Field Report. Tripura, India

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R. Rajendran, Tamil Nadu Agricultural University, Coimbatore

Audience: 2nd National SRI Symposium, Agartala, India

Subject Country: Tripura, India

Published in: Technology, Travel
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0723 System of Rice Intensification. Group II Field Report. Tripura, India

  1. 1. Field Trip Report – Group II October 5, 2007 Chairman: Dr. L.G. Giri Rao Rapporteur: Dr. R. Rajendran Liaison Officer: Mr. Ashish Saha Co-ordinator: Mr. Chakraborthy Officer – in- charge: Mr. P.K. Datta
  2. 2. No. of delegates participating 50 Villages covered 3 Farmers participating 35 Farmers interviewed 5
  3. 3. S.No. Villages Location Farmer interviewed 1 Bagabasa GP Melaghar RD Block, West Tripura Mr. Vallab Debnath 2 Sonapur Bosh Nagar RD Block, West Tripura Mr. Chowdhary 3 Indiranagar Melaghar RD Block, West Tripura Mr. Amirthalal Das
  4. 4. Visitors received an overwhelming reception
  5. 5. <ul><li>Farmer experiences: Mr. Vallab Debnath </li></ul><ul><li>In local govt area, 40 ha planted with SRI </li></ul><ul><ul><li>Practices under SRI: </li></ul></ul><ul><ul><li>Seed rate – 2 kg/ac (conv. 20-25 kg/ac) </li></ul></ul><ul><ul><li>Compost - 3 t/ac, NPK – 40 kg/ha (conv. applic. 70 kg/ac) </li></ul></ul><ul><ul><li>8-10 day, single seedlings, gap-filling </li></ul></ul><ul><ul><li>Water management – AWD </li></ul></ul><ul><ul><li>Yield – 30-35 mond/kani (3 t/ac) </li></ul></ul>
  6. 6. <ul><li>Field observations : </li></ul><ul><li>Bagabasa Gram Panchayat area </li></ul><ul><li>Swarna Mashuri and Pooja varieties </li></ul><ul><li>Square planting, 22 – 25 cm </li></ul><ul><li>Tillers per plant 25- 35 (ave. 30) </li></ul><ul><li>Water stagnation by rain but draining </li></ul><ul><li>First hand weeding by rotary weeder </li></ul><ul><li> </li></ul>
  7. 7. 2. Mr. Chowdhary (Sonapur) Aman rice – planted with SRI methods Seed rate – 2 kg/ac (conv. 25 kg/ac) Seedling – single (conv . 5-6/hill), 10 d old seedlings (conv. 30 days) NPK fertilizer – 65 kg/ac (conv. 175 kg/ac) Three rotary weedings – 12, 24 and 36 DAT (conv. 2 hand weedings); AWD irrigation No lodging; reach maturity 5-7 days earlier, but pest attack is more in SRI
  8. 8. <ul><li>Paddy yield expected from present aman crop: </li></ul><ul><li>40 mond/kani - 3.8 t/ac (9.5 t/ha) </li></ul><ul><li>Constraints: </li></ul><ul><li>Labour problem especially for weeding </li></ul><ul><li>Time-bound operations </li></ul>
  9. 9. 3. Mr. Amirthalal Das, Indhiranagar 10 d old seedlings, single seedlings, square planting, 25 x 25 cm spacing Rice yield 40 panicles/hill, 38 mond/kani – 3.8 t/ac (conv. yield 1.8 t/ac -- 9.5 vs. 4.5 t/ha) Yield >doubled; cost reduced; 15 days earlier maturity; low pest pressure; good grain filling; low chaff (few unfilled grains); maximum tillering; only labour is a problem
  10. 10. After the field visit, 6 presentations were made by delegates S.No Name of delegate Topic 1 Dr. V. Ravindra Babu, DRR, Hyderabad <ul><li>Grain quality assessment in SRI </li></ul><ul><li>BPT 5204, DRRH-2, Swarna </li></ul><ul><li>Eco-SRI, SRI and Traditional </li></ul><ul><li>Only varietal difference in grain quality </li></ul><ul><li>No influence by management effect except few parameter, viz., amylose content </li></ul><ul><li>Results need to be confirmed </li></ul>
  11. 11. S.No Name of delegate Topic 2 Dr. K. Surekha, DRR, Hyderabad <ul><li>Nutrient uptake and soil mining study in SRI </li></ul><ul><li>Low NUE and yield in Eco-SRI </li></ul><ul><li>SRI & conventional NPK uptake on par </li></ul><ul><li>SRI & conventional yields -- no difference </li></ul><ul><li>No soil depletion after 2 seasons of SRI </li></ul><ul><li>No clear varietal difference exists on NUE </li></ul><ul><li>Soil-available K more in Eco- SRI </li></ul><ul><li>Results need to be confirmed </li></ul>
  12. 12. S.No Name of delegate Topic 3 Dr. K. Karthikeyan, Kerala <ul><li>Pest incidence in SRI </li></ul><ul><li>Jyothi & KRH–2 evaluated </li></ul><ul><li>Stem borer moderate level </li></ul><ul><li>Rice blue beetle - more under SRI </li></ul><ul><li>Leaf folder and whorl maggot reduced in SRI </li></ul><ul><li>Increased activity of natural enemies, viz., spiders and larval parasites </li></ul><ul><li>Only one season of data, results need to be confirmed </li></ul>
  13. 13. S.No Name of delegate Topic 4 Dr. G. Ravi, TNAU, Tamil Nadu <ul><li>SRI and IPM </li></ul><ul><li>Stem borer, BPH, whorl maggot, gall midge reduced under SRI </li></ul><ul><li>Only leaf folder is more under SRI </li></ul><ul><li>Increased activity of predatory spiders </li></ul><ul><li>IPM fits very well with SRI </li></ul>
  14. 14. S.No Name of delegate Topic 5 Sardar Iqbal Singh, Farmer, J & K Used marker, 25x25 cm spacing, 15 d seedlings, pulling out of nursery very easy, conventional method laborious, AWD irrigation, full NPK applied, cono weeder 20 th day Variety: PC 19 35-55 tillers/hill Ave. yield: 4.5 to 5.0 t/ha
  15. 15. S.No Name of delegate Topic 6 Mr. Gopal Swaminathan Agricultural graduate cum farmer Shared his experiences on: Double transplanting technique with SRI to mitigate extremely hot climate in Cauvery Delta Innovative method of planting rice on ridges (direct seeding) in ridge-furrow system
  16. 16. Field study ….
  17. 17. Serious discussions going on …..
  18. 18. Field view & view of rotary weeder in Bagabasa village
  19. 19. Field study …. Seeing the difference between SRI & conventional practice
  20. 20. T h a n k y o u

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